Pre-fill the OLAP cache for a query on Data change event of infoprovider

Hi Gurus,

I have to pre-fill the OLAP cache for a query,which has bad performance.

I read a doc 'Periodic Jobs and Tasks in SAP BW'

which suggested sum steps to do this

i hav created the setting for Bex broadcasting for scheduling job Execution with data change in info provider

thereafter doc says "an event has to be raised in the process chain which loads the data to this InfoProvider.When the process chain executes the process u201CTrigger Event Data Change (for Broadcaster)u201D, an event is raised to inform the Broadcaster that the query can be filled in the OLAP cache."